A184105 n-1+ceiling((n/5)^2); complement of A184104.

1, 2, 3, 4, 5, 7, 8, 10, 12, 13, 15, 17, 19, 21, 23, 26, 28, 30, 33, 35, 38, 41, 44, 47, 49, 53, 56, 59, 62, 65, 69, 72, 76, 80, 83, 87, 91, 95, 99, 103, 108, 112, 116, 121, 125, 130, 135, 140, 145, 149, 155, 160, 165, 170, 175, 181, 186, 192, 198, 203, 209, 215, 221, 227, 233, 240, 246, 252, 259, 265

Offset

1,2

Links

Table of n, a(n) for n=1..70.

Index entries for linear recurrences with constant coefficients, signature (2,-1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,-2,1).

Mathematica

a=25; b=0;
Table[n+Floor[(a*n+b)^(1/2)], {n, 100}]
Table[n-1+Ceiling[(n*n-b)/a], {n, 70}]

Crossrefs

Cf. A184104.

Sequence in context: A129590 A261132 A262525 * A062469 A340758 A238098

Adjacent sequences: A184102 A184103 A184104 * A184106 A184107 A184108

Keyword

nonn,easy

Author

Clark Kimberling, Jan 09 2011

Status

approved